Chemical Engineering MCQs

Page No. 74

Fugacity and pressure are numerically not equal for the gases__________________?


aAt low temperature and high pressure


bAt standard state


cBoth A. and B


dIn ideal state


View Answer Both A. and B

For an ideal gas, the enthalpy__________________?


aIncreases with rise in pressure


bDecreases with rise in pressure


cIs independent of pressure


d Is a path function



Clapeyron Equation deals with the____________________?


aRate of change of vapour pressure with temperature


bEffect of an inert gas on vapour pressure


cCalculation of ΔF for spontaneous phase change


d Temperature dependence of heat of phase transition



Third law of thermodynamics is concerned with the__________________?


aValue of absolute entropy


bEnergy transfer


cDirection of energy transfer


dNone of these



Fugacity and pressure are numerically equal, when the gas is____________________?


aIn standard state


bAt high pressure


c At low temperature


dIn ideal state


View Answer In ideal state

Activity co-efficient is a measure of the____________________?


aDeparture from ideal solution behaviour


bDeparture of gas phase from ideal gas law


cVapour pressure of liquid


d None of these



If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in____________________?


aVolume


b Enthalpy


cBoth A. & B


dNeither A. nor B


View Answer Both A. & B

In a homogeneous solution, the fugacity of a component depends upon the __________________?


a Pressure


bComposition


cTemperature


dAll (A), B. and (C)


View Answer All (A), B. and (C)

Which of the following is an extensive property of a system ?


aHeat capacity


bMolal heat capacity


cPressure


d Concentration


View Answer Heat capacity

In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible ______________ process?


a Isobaric


bIsothermal


cIsentropic


dIsometric


View Answer Isobaric

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